Is anyone running the yz 2000, 2001 pipes on there wr's. I have a 99wr and was wondering if the yz unit can be used on my bike and what needs to be done too suit it. Will it slip straight on and what jetting specs will I need for it in Vic. Also is it too loud or bearable for bush work, how does it compare to a W/B s bend. Thanks any help apreciated... Cambo...

Hey Curt, is your bike stock or altered and what state are you in. Because I was wondering if the different state of tune and or altitudes has anything to do with why my bike hates Opticrap and yours doesn't. My one is a bog stock 99'r with the air box lid removed and I ride east and south east Vic.
It runs well on it then suddenly the plugs stuffed, I have no problem with any other fuels.
The general sences seems to be you either love or hate it depending on your paticular bike.....
Cambo....